I mentioned here the other day that physicist Richard Muller, once the darling of those who insist Global Warming is bogus, now says it's real and that human activity is its main cause. Kevin Drum makes a good point…
…as near as I can tell, climate skeptics, including those who said they'd trust Muller's results no matter what they showed, haven't budged an inch since he published his initial papers last year. I doubt his new paper will change their minds either. That's no surprise, since this has long since ceased being a scientific controversy. Climate skeptics are skeptics because they don't like the idea of global warming, not because there's truly any evidence that it doesn't exist. It's politically inconvenient, economically inconvenient, and personally inconvenient, so they don't want to hear about it.
I think that's it. This is not about science. It's a battle between reality and denial. One friend of mine will never admit Climate Change might (might) be happening because that would mean Al Gore was right and we can't have that. As near as I can tell, the only basis my friend has for disbelieving Climate Change is Gore's advocacy. If Gore became a vocal crusader against man-on-dog sex, my friend would probably marry a cocker spaniel.